Tool for capping cans.



I. NEWMAN.

TOOL FOR CAPPING CANS.

APPLICATION FILED APR. 27, I917.

Patented May 14,1918

ii i;

TUQL Fillt K2APPIN GEQ SU Specification of Letters Eatent.

Application filed April 22?, 1&1? Eeriel filo. 162,833.

To aZZ whom it may concern:

Be i known that I, lsinoii NEWMAN, a citizen of the United States, and resitient of New York city, borough of the Bronx, in the county of the Bronx and State of New York, have invented certain new and useful Improvements in Tools for Capping Cams of which the following is e specifics tien Some classes of tin cans are provided with filling; holes in which caps are fitted, and

sometimes such caps are soldered in place and other times the caps are seamed to the can heed v My invention his reference to an improved tool or machine adapted to turn a transverse fienge of a cap over a neck or outwardly projecting fisnge oftlie can body, and also to expand the side of the cap against the can body, such operations being carried out simultaneously by pressure upon the tool and rotation of the tool.

My invention comprises novel details of improvement and combinations of parts that will be more fully hereinafter set forth and then pointed out in the Clliillti.

Reference is to be had to the accompanying" drawings forming part hereof, witierein Figure 1 is a partly sectional side elem (ion of cap seeming tool einbotiying my invention; Fig. is a section substantially on the lineia, 2, in Fig. 1., showing the parts ready for operation; 3 is enlarged i'lBiZt-llSEGQlOIl of part of Fig. 53 illustrating the puts in the operating position; Fig. i an enlarged detaii View at ri 'lit angles to 3; Fi :3 is an emit View of part being removed; Fig. 6 is a face view illustrating a cap in position on the can body, and Fig. i is a, similar View illustrating; the can seamed on the can body Similar numerals of referenceindicate corresponding parts in the several views.

At 1 is s syindle, the outer portion 1 of which adapted. to be fitteti to a suitiible tool, such as to tile chuek of e driil press or other means, whereby said syindie may be pushed longitudinally toward a can and re titted 2 is at body having a bore. 3 in which spindle 1 is slideoly fitted. Means provided to cause rotation of said with the spindle While permitting relative longitudinal movement of one with rei c-ion to the other, fox: which purlaose 1 i'lfiffl shown the hub 2 of said body provided with s longituclinel slot 4: receiving; a pin or projection 5 extending from spindle 1. The pin and slot connection also retains the body in assembled reiation. A spring at a interposed. between hub 2 and shoulder or stop 1 on spindle 1, serves normally to press the spintile and body apart as limited by pin The spring may be omitted it clesiz'etl. At c e plunger or a guiding head shown in circular form adapted to fit and rotate within a flanged cap 7, tiiet is to be secured in hole 8 in s can. loo-(iv 8. Said plunger is shown proviued with stem 9 that sliiiable in bore 10 in the lower end of spindle 1, whereby plunger operatively maintained concentrically with respect to the axis of said spindle to rotate within the cap for guidingpurposes. The plunger 0!. guiding head 6 is preferably normally pushed outwardly by one or more springs ll'interposed. between said plunger and body 2. i, have shown two springs for such purpose and the plunger provided with spaced rods 12 projecting from the-plunger, and guided to slide in bores 13 in body 2, said rods being shown passing through and guiding the springs. 1L 'At 1% are indicated rolis eflisptetl to be fitted Within cap *4 to expand the latter against adjacent merginal portions of tlie can boiiy, which. rails ere adepteu ior cooperation with the plunger or guiding 11cm} (3 Said rails are shown diametrically spaced. apart and the under side of plunger 8 is shown provided with recesses to which rolls 1e are fitted, the metal 6" above said rolls being adapteci to bear upon the latter, whereby the springs 11 when pushing the plunger outwardly will also push the rolls outwardly. Plunger 6 is siottefi transversely at 6 to permit lateral movement of the 1% of rolls 14:, @aiti stems are shown guided to slide in bores 15 in 15., the upper ends of which ere pivoteliy supported upon pins or the iilie i6 fitted in holes in hotly 2. The u oper ens of l5 shown squerexi and fitted in transverse siot 17 in body 2 whereby ssiti with the rciiers 1 1-. may move lzi-tersliy ut will rotated by body 2. The stems of roiis M are shown retained in bores 53' of 15 by means of screws 153 threadecl in said arms, said serews entering ennuier depressions 1%" in the stem the end portions 1-4" of said stems serving to limit outward movement thereof by engagement with screws 18 against the tension of springs 11, whereby the outward movement of plunger or guiding head 6 is limited by reason of the engagement of the portions 6 thereof with the rolls let. When the screws 18 are removed the stems 14 may pass out of the bores 15 thus permitting removal of the rolls, the'plunger and the springs. While I have shown two rolls 14- on opposite sides of the axis of spindle 1, and located at right angles to the guiding rods 12, it will be understood that one or more of such rolls may be provided if desired.

The outer periphery of rolls 1% may substantially coincide with or be within the circumferential arc of plunger 6 for insertion in cap 7 with said plunger. To force the rolls let outwardly within cap 7 for spinning or pressing the latter against the adjacent portion of the body, the arms 15, near their lower ends, are provided with cam-like surfaces 19 adapted to be engaged by the cammed .or downwardly inclined portion 20 of spindle 1. When the spindle is moved outwardly with respect to body 2 the cammed portion 20 of the spindle will be drawn back from cams 19, and when the spindle is pushed inwardly or toward the plunger the cammed portion 20 will engage the earns 19 and cause the arms 15 to spread apart to correspondingly spread the rolls 14 to force them against the inner wall of cap 7. Springs21 may be provided to press arms 15 and rolls l t inwardly toward spindle 1, whereby said rolls will be maintained in position for ready insertion into and removal from cap 7. I have shown said springs interposed between arms 15 and stops 22 secured upon the outer edge of body 2 by screws 23, and at 24;are screws carried by stops 22 for retaining said springs in position.

I have also shown means for spinning down or seaming the laterally projecting flange 7 of cap 7 over the out-turned neck or flange 8" of the can body that surrounds the hole 8 thereof, which is accomplished at the time that the rolls 1e expand or spin the lower marginal portion of the cap. For such purpose I have shown rollers 25 spaced apart on opposite sides of plunger or guiding head 6, adapted to bear upon the portion of flange 7 that projects beyond neck 8 The rollers 25 are shown disposed diametrically at right angles with respect to the rolls 14. The rollers 25 are journaled upon spaced projections 26 extending from body 2 and operate at right angles to the operation of rolls 1%. Said projections may be in the form of rods or bars seated in recesses 27 in body 2, and retained in position by screws 28 threaded in said body. The stems 25'' m saidrollers are journaled in bearings infthc projections 26, and I have shown springs 26 having forked ends entering annular recesses 25 in said stems for normally pressing said stems outwardly and for retaining the rollers in proper position upon projections 26. The springs have an outward tendency and are shown secured upon projections 26 by screws 26. By removing springs 26 the rollers 25 may be removed and replaced.

When a cap is to be secured on the can body, the cap is seated in hole 8 and the lunger 6 and rolls 14 are inserted in the cap (Figj 2) and pressure is applied clownwardly upon the spindle, whereupon the cap will be pushed by the plunger snugly in the hole to force its flange 7 upon the neck 8 and the cam part 20 of the spindle will engage the cam parts 19 of arms 15 to spread the latter, whereupon rolls 14. may be forced into engagement with a marginal portion of the cap. The tool will be rotated and the plunger or guiding head 6 with the rolls l-l will rotate within the cap, and continued pressure of the spindle downwardly will cause rolls ll to be gradually pressed outwardly to spin or expand the cap side wall against the adjacent portion of the can body below neck 8 ,.and during such operation the rollers 25 will bear upon the portion of flange 7 that extends beyond neck 8 to spin down said portion of the flange over the neck 8", and the roller 25 in conjunction with the plunger squeezes the flange 7 the neck 8 and the margin of the cap tightly to gether, substantially to the positions shown in Figs. 3 and 4. The body 2 and rollers 25, by being rotated by and with spindle 1. will be caused to move toward the can body by reason of the natural and automatic effort or the body to slide along the spindle onwhich it is freely mounted, assisted by the pressure of spring a when the latter is used. Since -can bodies of the class referred to are frequently provided with an annular depression at 8 around the neck 8" the marginal portion of flange 7 of the cap not only will be turned down along said cap, but will be spun laterally into the annular depression 8 (Figs. 3 and i). The combined operation of the rollers 25 on the outside of the neck 8? tending to resist expansion of the neck while crowding the flange 7 ,down along said neck, and the outer pressure of the rotating rolls ll against the side wall, of the cap serving to crowd the metal of the parts 7, 8 together, while spinningthe sidewalls oi the cap against the can body in a forcible manner, effect a tight hermetical marginal sealing of the cap on the can body. When the cap has been sealed in place the spindle 1 will be pulled outwardly or raised, relieving its cammed portion 20 from arms 15 and the latter may swing inwardly to release the iia rolls ll from the cap, whereupon the tool may be removed from the can, the member 2 rising with the spindle.

Having now described my invention What I claim is 1. A. tool of tae class described comprising a plunger to rotate Within a cap, a roll cooperative with the plunger Within the cap, a spindle movable separately from the roll and plunger to force the roll laterally within and against the cap to spin the latter, a roller to operate on a lateral flange of the cap, and means to direct the roller against said flange while the roll operates against and within the cap.

A. tool or the class described compris lug laterally movable roll, a plunger re ceiving the roll permitting its lateral movement, means to press the roll laterally in spinning contact with a cap, a vertically 'inovable roller spaced laterally from the roll and from the plunger, and means to retate said plunger roll and roller bodily with relation to a to simultaneously expand wall of the cap and bend a flange of the cap over the neck of a can body.

A tool of the class described comprising a spindle, a laterally movable roll, a plunger receiving the roll permitting its lateral movement, a body carrying said roll and plunger and movable relatively to "the spindle, means cooperative between the spindle and roll for moving the roll laterally, a roller carried by the body adjacent to theroll and plunger, and means to rotate the body with the spindle, whereby the roll may operate within the cap to spin it, and the roller may bend a flange of the cap between the roller and the plunger when the tool rotates.

-'l. A tool of the clas described comprising a spindle, a body movable relatively to he spindle, a plunger movable relatively o swindle, a roll cooperative with the g, means connecting the roll With the L nger and with the body to rotate them to "ether, ro ler carried by the body spaced the roll, and means to rotate the body with the I nclle, the roller being movable relatively to the roll to bend a flange while the roll spins a cap having such flange.

5. A tool of theclass described comprising a spindle having a bore, a plunger having' a stem slidable in said bore, a roll to operative with the plunger, adapted to enter a cap to spin it, the plunger having a reoess receiving theroll, a guide for the roll movable laterally, and means cooperativebetween the spindle and guide for moving the latter and the roll laterally by longifidfilflttl movement of the spindle to spin within a cup;

6. A. tool of the class described comprising a spindle having a bore, a plunger to cooperate with a cap and having a stem slidable in said bore, a roll cooperative with the plunger Within the cap, a guide for the roll mo able laterally, th roll having outward movement relatively to the guide, means cooperative between the spindle and guide for moving the latter and the roll laterally to spin a cap, a spring normally pressing the plunger outwardly uuth the roll, and means to limit outward movement of .he plunger and roll.

7. A tool of the class described comprising a spindle having a bore, a plunger having a stem slidable in said bore, a roll cooperative with the plunger, laterally movable guide having bore, said roll having a stem slidable in the last-named bore, means to permit limited longitudb nal movement of the last-nainedstem relative to the guide, means cooperative between the spindle and guide for moving the latter and the roll laterally, and a spring normally pressing the plunger outwardly to correspondingly u'iove the roll.

8. A tool of the class descri ed comprising a spindle, a body rotative with and movable longitudinally along the spindle, a plunger, means movably supporting and guiding the plunger with respect to the spindle and body, an outwardly movable roll cooperative with the plunger, a guide -movably carried by the body and operatively connected with the roll, whereby the plunger may be rotated with the spindle and the roll may move laterally relatively to the plunger, means cooperative between the spindle and guide to cause the roll to move laterally, and a spring cooperative between the body and plunger for normally pushing the latter and the roll outwardly.

9. A, tool of the class described comprising a spindle, a ody rotatis'e with and mom able longitudinally along the spindle, a plunger, means movably supporting and guiding the plunger with respect to the spindle and body, an outwardly movable roll cooperative with the plunger, a guide movably carried'by the body and operatively connected with the roll, whereby the plunger may be rotated with the spindle and the roll may move laterally relatively to the plunger, means cooperative between the spindle and guide to cause the roll to move laterally, a spring cooperative between the body and plunger for normally pushing" the latter and theroll outwardly, and a roller carried by the body adjacent to the roll to operate on a cap flange.

10. A tool of the class described comprisifig a spindle, a body rotative with and movablelongitudinally along the spindle, a plunger, means lmo vably supporting and guiding the plunger with respectto the spindle and body, a guide movably carried by the body, a roll. having a stem guided by said guide, the plunger having a recess reeeiving the roll and having a portion eooperative with the roll to push the latter outwardly, a spring between the' plunger and the body, means to limit outward movement of the roll and thereby the plunger, means cooperative between the spindle and the roll guide for moving the latter laterally, and a roller carried by the body and operative at right angles to the plane of operation of the roll for bending a flange of the cap. j

- 111. A tool of the class described comprising a spindle, a body rotative with and movable longitudinally along the spindle, a plunger having a stem uided by the spindle, a guide movably carried by the body and provided with a bore, a roll having a stem slidable in the here, means to limit longitudinal movement of the stem in the bore, the plunger having a recess cooperative with the roll to permit lateral movement of the roll and to move the roll with the plunger, a spring cooperative between the plunger and the body for normally moving the plunger and the roll outwardly, and means cooperative between the spindle and the guide carrying the roll for moving the latterlaterally.

12. A tool of the class described comprising' a spindle, a body rotative with and movable longitudinally along the spindle, a plunger, guiding means for the plunger, a spring normally ushing the plunger outwardly, a pair 0t guides pivotally carried by the body on opposite sides of the spindle, a pair of rolls guided by said guides,-the plunger having means cooperative with the rolls to push them outwardly and to permit the rolls to move relatively to the plunger,

' means to limit outward movement of the between said spindle and the roll guides for moving the latter and the rolls laterally.

13. A tool of theclass despribe'd comprisspring normally pushing the plunger ol1twardly, a pair of guides pivotally carried by the body on opposite sides of the spindle, a pair of rolls guided by said guides, the plunger having means cooperative with the rolls to push them outwardly and to permit the rolls to move relatively to the plunger, means to limit outward movement of the rolls and thereby the plunger, projections extending from the body on opposite sides of the spindle, rollers carried by the projections and spaced from said rolls adapted to bear upon a cap flange while the rolls operate within the cap, means cooperative between said spindle and the roll guides for moving the latter and rolls laterally, and springs cooperz'itive between said guides and the body for movin the guides reversely to their operation by the spindle.

14:. A tool of the class described comprisspindle, a plunger having a stem guided in the bore of the spindle, said plunger haying. rods on opposite sides of the spindle ,and' guided by said body, springs interposndpetween the body and the plunger, guides pivot-ally carried by the body and spaced from the spindle, said guides having bores, rolls having stems slidable in said bores, means to limit longitudinal movement of the stems in the bores, the plunger having recesses cooperative with said rolls and their spindles permitting lateral movement of the rolls, projections carried by said body and located on opposite sides of the spindle, and rollers rotatively carried by the projections and spaced from said rolls at an angle thereto for operation on a cap flange while the rolls operate within the cap.

Signed at New York city, in the county of New York and State of New York, this isinon NEWMAN. 

